Buffer

Código:

#==============================================================================
# ** Buffer
#------------------------------------------------------------------------------
#  Autor: Valentine
#==============================================================================

class Buffer_Writer
 
  def initialize
    @write_buffer = []
    @write_pack = ''
  end
 
  def write_byte(byte)
    @write_buffer << byte
    @write_pack << 'c'
  end
 
  def write_boolean(value)
    write_byte(value ? 1 : 0)
  end
 
  def write_short(short)
    @write_buffer << short
    @write_pack << 's'
  end
 
  def write_float(float)
    @write_buffer << float
    @write_pack << 'f'
  end
 
  def write_double(double)
    @write_buffer << double
    @write_pack << 'd'
  end
 
  def write_int(int)
    @write_buffer << int
    @write_pack << 'i'
  end
 
  def write_long(long)
    @write_buffer << long
    # q representa um número de 64 bits, diferentemente de l que representa um
    #número de 32 bits
    @write_pack << 'q'
  end
 
  def write_string(str)
    write_short(str.bytesize)
    str.each_byte { |c| write_byte(c) }
  end
 
  def to_s
    @write_buffer.pack(@write_pack)
  end
 
end

#==============================================================================
# ** Buffer_Reader
#==============================================================================
class Buffer_Reader
 
  def initialize(str)
    @read_bytes = []
    str.each_byte { |c| @read_bytes << c }
    @read_pos = 0
  end

  def read_byte
    byte = @read_bytes[@read_pos]
    @read_pos += 1
    byte
  end

  def read_boolean
    read_byte == 1
  end

  def read_short
    short = @read_bytes[@read_pos, @read_pos + 2]
    @read_pos += 2
    short.pack('C*').unpack('s')[0]
  end

  def read_float
    float = @read_bytes[@read_pos, @read_pos + 4]
    @read_pos += 4
    float.pack('C*').unpack('f')[0]
  end

  def read_double
    double = @read_bytes[@read_pos, @read_pos + 8]
    @read_pos += 8
    double.pack('C*').unpack('d')[0]
  end

  def read_int
    int = @read_bytes[@read_pos, @read_pos + 4]
    @read_pos += 4
    int.pack('C*').unpack('i')[0]
  end

  def read_long
    long = @read_bytes[@read_pos, @read_pos + 8]
    @read_pos += 8
    long.pack('C*').unpack('q')[0]
  end

  def read_string
    bsize = read_short
    str = @read_bytes[@read_pos, @read_pos + bsize]
    @read_pos += bsize
    str.pack('C*').unpack("A#{bsize}")[0]
  end

  def can_read?
    @read_pos < @read_bytes.size
  end

end

@Profane ~ escreveu:Eita, RPG Maker com Buffers /o/ Agora sim parece ter superado a EBB <3